HELP! Im not good at algebra!
1! Please!

Step-by-step explanation:

1.

A system of 2 linear equation means , two lines.

2 lines can intersect only once, which will be solution to the system.

Or if the lines are parallel, they can never intersect. so there will be no solution.

If two lines are coincident, then they intersect at all points along the line - that is, infinitely many points and hence infinitely many solutions.

Option  E

2.

3x + 4y = 36

Option A = ( 12 , 0 ) => 3 ( 12 ) + 4 ( 0 ) = 36

                              => 36 + 0 = 36

                              => 36 = 36

Satisfies

option B = (0 , 9 ) => 3 ( 0 ) + 4 ( 9 ) = 36

                          => 0 + 36 = 36

Satisfies

option  C = ( 6 , 4 ) => 3 ( 6 ) + 4 ( 4 ) = 36

                                   18 + 16 = 36

                                    34 = 36

Does not satisfy

option D = all of the above => False

Option E = A and B => True

Option A, B , E